Buy 10 mm Round Calibrated Gemstones from GemSelect

Some people by gems by color or price, but for many, it is best to buy gems by shape and size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated Round shapes, facet cut and cabochon gems available now in 10 mm diameter size range. Shop a wide range of calibrated gemstones by size online at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not usually expected to be cut to exact measurements. For calibrated gemstones weighing under one carat, most jewelry settings will accommodate a gem which is within 0.2 mm of the calibrated size in order to fit a standard setting. For gemstones that weigh over one carat, a larger variance is acceptable, often around 0.3 mm or slightly higher even. This small variance can usually be accommodated for standard style settings. Round-cut gemstones should also have a greater variance in acceptable size when it comes to calibration; in fact it is usually possible to mount a round stone of any size in the closest standard setting.

Read All

Gemstone Information

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 9

Never bought anything on this website before, but it probably won't be my last purchase. Definitely one of the easiest to use and most informative sites I've ever been to.

Posted By Bob in November, 2023

Source: Bizrate

Overall Rating -> 10

Was easy to search for many gems and mineral stones.Authenticity of natural stones is important, and I feel this site offers some assurance on this.

Posted By DanM in November, 2023

Source: Bizrate

Overall Rating -> 10

It was easy to find the color gem I desired and checkout was simple as well. Very excited to receive my gemstone.

Posted By Nikki J in September, 2023

Source: Bizrate

Overall Rating -> 8

Very easy to find the specific stone I was looking for. I am pleased by both the selection and the price of the stones that are available. The only "bad" thing that I have to say is that the interface of the site is outdated.

Posted By Nick in March, 2024

Source: Bizrate

Overall Rating -> 10

Great selection, I love your site! Great product visibility, information, etc.

Posted By John in February, 2024

Source: Bizrate

Overall Rating -> 10

Best place to buy gem stones, dont bother shopping else where. Prices are great, no issues with shipping and customer service is the best.

Posted By J in December, 2023

Source: Bizrate

Overall Rating -> 10

I have received emails for about a year and today is the condition that had me decide on the purchase

Posted By Tim in April, 2024

Source: Bizrate

Overall Rating -> 10

Easy to use website, made it very easy to buy. Will shop here again.

Posted By Bjorn in January, 2024

Source: Bizrate

Overall Rating -> 10

was just windowshopping and spotted a couple "Very Uncommons", a tsavorite & a demantoid garnet that were both in a size I was looking for, & that I could very easily pay for -- so figured I would grab the tsavo ASAP and got the demantoid to accompany so they wouldn't be lonely.

Posted By Kittypie070 in April, 2024

Source: Bizrate

Overall Rating -> 10

I’ve enjoyed purchasing stones from this site. It’s convenient and fairly priced.

Posted By Chico in May, 2023

Source: Bizrate

Overall Rating -> 10

I have used this site for sseveral years now. All has been great. I started collection gems from GemSelect for years and wanted to collect at least one of most stones. I loved Safers because the mols is a 9 + and they come in every color. This is the best place to buy gems for the assortment and price. Great place to learn about gems too. Sometimes the shipping is a little on the long side. But I would give them a 9.9 out of 10 !!

Posted By Steve in July, 2023

Source: Bizrate

Overall Rating -> 10

I love the clear description of the certification options. It's very rare to see a gem site that offers a deep explanation of each institution that would certify the stone(s).

Posted By Oakcityceo in May, 2023

Source: Bizrate

Overall Rating -> 8

I did not realize how small the stone was. I cannot use it for the project I wanted, but I am keeping the stone and tru to use it in something else.

Posted By Mark in March, 2024

Source: Bizrate

Overall Rating -> 10

The gems were as described, which is kind of rare these days. I am happy with the purchase, and delevery on time.

Posted By T-bone in October, 2023

Source: Bizrate

Overall Rating -> 10

this was very easy im exited to get my order

Posted By Mr. in April, 2024

Source: Bizrate

Gemstones A-Z

Buy Round Shape 10 mm Gems

3.69 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 7 x 5.1 mm

3.58 carat White Topaz, Round loose Topaz from Brazil, Natural Untreated Gem, 9 mm

6.47 ct Round Petal Cut Rose Quartz, 11.3 mm From South Africa

4.2 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 9.8 x 7.8 mm

1.88 ct Round Cut Strawberry Quartz, 7.9 mm From Russia

0.93 ct Oval Chrysoberyl Cat's Eye, 6.4 x 4.5 mm From Sri Lanka

0.44 ct Loose Purple Sapphire, 5.9 x 4 mm Oval Cut From Madagascar

17.86 ct Loose Pear Dendritic Agate, 18.3 x 13.2 mm From India

0.56 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 5.6 x 4.6 mm

17.96 carat Pear Jasper, loose Certified Jasper from Indonesia, Natural Untreated Gem, 25.3 x 18.1 mm

1.79 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.2 x 4.2 mm

1.67 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5 x 4 mm

6.94 ct Round Cut Strawberry Quartz, 10.2 mm From Russia

3.42 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 9.1 x 6.9 mm

0.54 ct Loose Pink Sapphire, 6.6 x 4.8 mm Oval Cut From Tanzania

1.63 carat Orange Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 6.6 mm

1.27 ct Loose Yellow Sapphire, 5 mm Round Cut From Tanzania

0.51 carat Yellow Citrine, Cushion loose Citrine from Brazil, Natural Untreated Gem, 5.1 x 5.1 mm

0.75 ct Purple Spinel, 5.1 mm Round Cut From Tanzania

2.62 ct Green Agate, 15.1 x 8.7 mm Carved From India

21.12 ct Fancy Rhodochrosite, 20.4 x 10.1 mm From South Africa

1.13 ct Loose Yellow Sapphire, 7 x 5.1 mm Cushion Cut From Tanzania

3.35 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gems, 7.1 x 7 mm

0.68 ct Cushion Cut Color-Change Diaspore, 5.6 x 4.8 mm From Turkey

1.7 ct Oval Sillimanite Cat's Eye, 6.7 x 4.4 mm From Madagascar

6.29 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 10.9 x 9 mm

7.61 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 13.9 x 10.1 mm

20.85 ct Oval Jasper, 28 x 17.8 mm From Indonesia

4.04 carat Sky Blue Topaz, Heart loose Topaz from Brazil, Natural Gem, 10 x 10.1 mm

38.34 ct Oval Bloodstone, 38.9 x 24.8 mm From Madagascar

2.57 ct Cushion Cut Peridot, 8.8 x 8.2 mm From Myanmar

2.68 ct Blue Kyanite, 8.2 x 6.1 mm Oval Cut From Nepal

Gemstone Information

Gemstone SHOP

POLICIES

WHO ARE WE?

Gemstone EDUCATION

WE ARE LOCATED AT